Earth-auger



(No Model.)

' F. L. BEAM 8v 0. F. HERBOLSHEIMER EARTH AUGER.

Patented May 8, 1894.

witnesses UNITED STATES PATENT QFFICE.

FRANK L. REAM AND oHARLES F. HERBOLSHEIMER, or LAD'D, ILLINOIS.

EARTH-AUGER.

SPECIFICATION forming part of Letters Patent No. 519,642, dated May 8,1894.

Application filed December 30, I893. Serial No. 495,278. (No modelJ ToaZZ whom it may concern.-

Be it known that we, FRANK L. BEAM and CHARLES F. HERBOLSHEIMER,citizens of the United States of America, residing at Ladd, in thecounty of Bureau and State of Illinois, have invented a new and usefulImprovement in Angers; and we do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

Our invention relates to an improvement in augers, and more especiallyto that class adapted to bore holes in the earth.

Our invention has for its object to provide an anger of this nature,having means for raising the earth, which has been loosened during theprocess of boring.

Our invention consists in the features and details of constructionhereinafter described, and specifically pointed out in the claims.

In the accompanying drawings, which illustrate our invention, Figure 1is a front elevation. Fig. 2- is a side elevation partly in section;Fig. 3- a section on the line 1-1 of Fig.1, and Fig. 4- a section online 2-2- of Fig. 1.

Similar letters of reference indicate corresponding parts.

A designates the central tube or rod, the upper end of which, isprovided with Screwthreads at, B the handle provided with an in teriorlyscrew-threaded sleeve 1) adapted to be screwed on the top of tube A,said sleeve having a hole a for the admission of air and a hook (Z. Thelower end of the tube A is provided with a hole e for the escape of air,and screw threads f. a

h is a bracket or arm screwed on to the lower end of the tube A abovethe outlet hole e, C the auger secured to the upper face of said bracketand consisting of a circular plate D having an opening therein,one sideof said opening extending beyond the circumference of the plate andbeing bent downward to form a blade g, provided with cutting edge g, andthen bent upward at a right angle thereto, to form cutting edge h. E avalve hinged to the outer edge of the opening in plate D and resting onsaid plate beyond the blades g, and

adapted to be pushed upward. F the adjust able clamp which tightlyembraces the tube A and also loosely embraces a lever G, the upper endof which is provided with a ring '6 to slip over the hook d. To thelower end of the lever G is attached a cylinder or shield H, by means ofan arm Iconsisting of two members is and Z bolted together and looselyembracing tube A, the member 10 of which is attached to the cylinderHand provided with an upwardly extending projection m which is riveted orjoined to the lever G.

It will be plainly obvious that through the adj ustability of the clampF it may be moved along and fixed at any point on the rod A, and thatthe lever G'being adapted to slide therein, or be firmly fixed may beraised or lowered and fixed at any desired point. It

will alsobe obvious, that the central stem being hollow and having ahole therein below the auger and also one at its top, when the anger isbeing raised, the air will pass through the stem into the space belowthe auger and prevent suction.

The operation is as follows: The cylinder or shield H being raised toits highest point on the tube A by placing the'ring 11, located on theupper end of the lever G, over the hook d located on the handle B, thepoint of the tube ,Ais inserted into the ground until the blades of theauger touch the ground, then the handle being turned, the blades of theauger begin to out the ground and as it is loosened, it forces open thevalve E and falls upon the plate or anger C. When the hole has been cutto the desired depth or it is desired to withdraw the auger for thepurpose of unloading the earth, the shield is lowered by removing thering 41 from the hook at and pushing the lever G downward until thecylinder H rests on the plate or auger C, the clamp can then be screwedtightly around the lever G and the whole apparatus raised from the hole,after which the clamp can be. loosened, the shield raised and the earthdumped.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, is*

1. In a boring apparatus the combination of the central tube or rodprovided with air inlet and outlet holes, the handle secured to the topof said central tube, provided with a sleeve having a hook formedthereon, the auger consisting of a circular cutting plate havopeningtherein, one side of said opening extending beyond the circumference ofthe said plate and bent downward and upward to form a horizontal and avertical cutting edge, the hinged valve for closing the opening in thecircular plate, with the adjustable cylinder having an arm, and a handlever, the lower end of which is secured to said arm and its upper endprovided with a ring, and the ad j ustable clamp embracing the centraltube and hand lever to afford means for holding said hand lever at anydesired height, substantially as described.

FRANK L. BEAM. CHAS. I HERBOLSI-IEIMER.

Witnesses:

MARTIN ZEARING, IRWIN BORGER.

